The dwindling number of sharks in the country is threatening an entire micro-economy that relies on them.
The pollution that cars emit goes beyond what spews from their tailpipe.
Ship-eating worms may be devouring centuries of history.
Melting sea ice is opening up the Arctic to more ships. The results could be catastrophic.
A journey to Alaska’s most isolated place
They’re usually just given ground-up fish. One company is exploring a more sustainable alternative: maggots.